* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f5f6fa;
    color: #2f3640;
}

.container {
    width: 400px;
    padding: 20px;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2f3640;
    text-align: center;
}

.tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid #dcdde1;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    color: #7f8fa6;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: #2f3640;
    border-bottom: 2px solid #0097e6;
    margin-bottom: -2px;
}

.tab-content {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #2f3640;
    font-size: 14px;
}

input, textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #dcdde1;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #0097e6;
}

textarea {
    height: 100px;
    resize: vertical;
}

.btn-primary, .btn-secondary {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-primary {
    background-color: #0097e6;
    color: white;
}

.btn-primary:hover {
    background-color: #00a8ff;
}

.btn-secondary {
    background-color: #dcdde1;
    color: #2f3640;
    margin-top: 10px;
}

.btn-secondary:hover {
    background-color: #c8c9cc;
}

.search-bar {
    margin-bottom: 15px;
}

#entries-list {
    max-height: 300px;
    overflow-y: auto;
}

.entry-item {
    padding: 10px;
    border-bottom: 1px solid #dcdde1;
    cursor: pointer;
}

.entry-item:hover {
    background-color: #f5f6fa;
}

.entry-item:last-child {
    border-bottom: none;
} 